extremity vs solution

extremity

noun
  • The most extreme or furthest point of something. 

  • A hand or foot. 

  • A limb (“major appendage of a human or animal such as an arm, leg, or wing”). 

  • An extreme measure. 

solution

verb
  • To treat with a solution. 

noun
  • A homogeneous mixture, which may be liquid, gas or solid, formed by dissolving one or more substances. 

  • An act, plan or other means, used or proposed, to solve a problem. 

  • An answer to a problem. 

  • A product, service or suite thereof, especially software. 

  • The act of dissolving, especially of a solid by a fluid; dissolution. 

How often have the words extremity and solution occurred in a corpus of books? (source: Google Ngram Viewer )